Science Questions

Sun, 27th Feb 2005

Part of the show Dinosaurs, Ancient Diets and Fossilised Crocs

Question

Janet asked:

How do they name dinosaurs and the periods of time that relate to dinosaurs?

Answer

They name dinosaurs after something distinctive. I named a dinosaur not so long ago because it had a big nose. We tend to use Latin or Greek words because of tradition. We know how old they are because we use isotopes to date particular bands of rock, and thus infer from that how old the fossils are.

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